EP0848578B1 - Four à micro-ondes - Google Patents

Four à micro-ondes Download PDF

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Publication number
EP0848578B1
EP0848578B1 EP97306337A EP97306337A EP0848578B1 EP 0848578 B1 EP0848578 B1 EP 0848578B1 EP 97306337 A EP97306337 A EP 97306337A EP 97306337 A EP97306337 A EP 97306337A EP 0848578 B1 EP0848578 B1 EP 0848578B1
Authority
EP
European Patent Office
Prior art keywords
side panel
microwave oven
cover plate
opening
cooking chamber
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP97306337A
Other languages
German (de)
English (en)
Other versions
EP0848578A3 (fr
EP0848578A2 (fr
Inventor
Myoung-Hwan Park
Jung-Hee Lee
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Samsung Electronics Co Ltd
Original Assignee
Samsung Electronics Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from KR1019970019728A external-priority patent/KR19980084099A/ko
Application filed by Samsung Electronics Co Ltd filed Critical Samsung Electronics Co Ltd
Publication of EP0848578A2 publication Critical patent/EP0848578A2/fr
Publication of EP0848578A3 publication Critical patent/EP0848578A3/fr
Application granted granted Critical
Publication of EP0848578B1 publication Critical patent/EP0848578B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B6/00—Heating by electric, magnetic or electromagnetic fields
    • H05B6/64—Heating using microwaves
    • H05B6/6402—Aspects relating to the microwave cavity
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B6/00—Heating by electric, magnetic or electromagnetic fields
    • H05B6/64—Heating using microwaves
    • H05B6/70—Feed lines

Definitions

  • the present invention generally relates to a microwave oven including a cooking chamber and an electrical component compartment separated by a side panel having an opening therein to enable microwave energy generated in the electrical component compartment to be transmitted into the cooking chamber and a cover plate attached to the side panel over the opening.
  • FIG. 4 A sectional view of the interior of a conventional microwave oven is illustrated in Figure 4 and is a cooking appliance in which high frequency microwave energy is absorbed by water and other molecules in food which makes them move at high speeds to create frictional heat which cooks the product evenly in a short space of time.
  • a conventional microwave oven includes an inner case 20 defining a cooking chamber and an outer case 10.
  • the inner case 20 has a front panel 21, a rear panel 22 and right and left side panels 23 and has a tray 31 positioned on the bottom of the cooking chamber 30.
  • An opening is provided in the front panel 21 of the cooking chamber 30 to provide access thereto.
  • the outer case 10 is connected to the front panel 21 and the rear panel 22 of the inner case 20 and constitutes the main body of the microwave oven.
  • the outer case 10 is spaced from the side panels 23 of the inner case 20 and a door 50 is hingedly mounted to one side of the front panel 21 of the inner case 20 to enable the cooking chamber 30 to be opened and closed.
  • a control panel 51 is provided to the right side of the front panel 21.
  • the space between the right side panel 23 of the inner case 20 and the right side panel 11 of the outer case 10 defines an electrical component compartment 40 containing a magnetron 42 for producing high frequency energy which is directed into the cooking chamber 30 and a fan 41 for cooling the electrical components which generate heat during operation.
  • the magnetron 42 is mounted on right side panel 23 of the inner case 20 within the electrical component compartment and high frequency microwaves enter the cooking chamber 30 through an opening 23c in the panel 23.
  • a cover plate 60 having bevelled edges covers the opening 23c on the inside of the cooking chamber 30 and is shown in more detail in Figure 5.
  • the cover plate 60 is coupled to the right side panel 23 using a curved portion 61 and an elastic piece 62 which will now be described in more detail.
  • the opening 23c is positioned in the centre of the right side panel 23 to allow the microwave energy generated by the magnetron into the cooking chamber 30, and holes 23a and 23b are respectively formed on the lower and upper sides of the opening 23c.
  • the curved portion 61 and the elastic piece 62 are respectively formed on the lower and upper sides of the rear of the cover plate 60 so that they mate with the holes 23a and 23b as the cover plate is brought into engagement with the side panel 23.
  • the elastic piece 62 is inserted into the hole 23b after the curved portion 61 has been fitted into the hole 23a, so that the front ends of the hook 61 and the elastic piece 62 come in close contact with the right side panel 23 to securely fix the cover plate 60 in position.
  • the microwaves generated by the magnetron 42 are directed into the cooking chamber 30 through the opening 23c and the cover plate 60 which prevents dirt and dust from sticking to the magnetron 42.
  • the right side panel 23 may be deformed when the magnetron 42 is welded or attached to the right side panel 23 or when the curved portion 61 and the elastic piece 62 are respectively inserted into the holes 23a and 23b during attachment of the cover plate 60.
  • the cover plate 60 may not lie flush resulting in a gap between the cover plate 60 and the side panel 23 in which dirt, dust and particles of food can collect. This can cause electric sparks during operation of the oven which decreases its reliability.
  • a microwave oven according to the present invention as defined in claim 1 is characterised in that the side panel (230) includes an angled portion (232) integrally formed on the periphery of the opening (231).
  • a microwave oven according the present invention is furthermore defined in claim 8.
  • the angled portion is preferably orthogonal to the side panel (230) and is directed towards the electrical component compartment (400).
  • the cover plate includes catch members which engages the angled portion and retains the cover plate in position over the opening.
  • a hook (610a) is formed on the catch members (610) which engages over the end of the angled portion (232).
  • the cover plate includes a peripheral sealing member.
  • the sealing member is flexible to conform to the contours of the side panel.
  • a microwave oven according to a further aspect of the invention is characterised in that the cover plate includes a peripheral sealing member.
  • a microwave oven includes an inner case 200 defining a cooking chamber 300 having an open side and an outer case 100 connected to the inner case 200 defining an electrical component compartment 400 separated from the cooking chamber 300.
  • the inner case 200 is comprised of a front panel 210, a rear panel 220 and right and left side panels 230.
  • the cooking chamber 300 includes a tray 310 and a door 500 is hingedly mounted to one side of the front panel 210 to enable the cooking chamber 300 to be opened and closed. Operating buttons (not illustrated) and a display (not illustrated) are provided to one side of the front panel 210.
  • the electrical component compartment 400 is positioned between the right side panel 230 of the inner case 200 and the right side 110 of the outer case 100 and contains a magnetron 420 for emitting microwave energy into the cooking chamber 300, a high voltage transformer (not illustrated), a choke circuit board (not illustrated), and a fan 410 for cooling the electrical components.
  • An opening 231 ( Figure 2) is provided in the right side panel 230 through which microwaves are directed into the cooking chamber 300.
  • a cover plate 600 is attached to the right side panel 230 within the cooking chamber 300 to cover the opening 231 using coupling means comprising angled portions 232 and catches 610. This coupling structure will now be described with reference to Figures 2 and 3.
  • the angled portion 232 is formed on both the upper and lower edges of the opening 231 by bending them inwardly towards the electrical component compartment. This also strengthens the right side panel 230 by increasing its sectional area, thus preventing deformation of the side panel 230 around the opening 231.
  • the catches 610 which include a hook portion 610a are formed on the back of the cover plate 600, which is made of injection molded elastic, and engage the curved portions 232 when they are passed through the opening 231.
  • Elastic sealing members 620 are integrally formed on the edges of the cover plate 600. As shown in Figure 3, as each hook 610a locates over the end of the respective angled portion 232 and the flexible sealing members 620 are forcibly pressed against the inner surface of the right side panel 230.
  • the present invention prevents distortion of the right side panel.
  • the elasticity of the sealing member allows the cover plate 600 to lie flush against the right side panel preventing the formation of a gap in which dirt and dust can collect. The reliability of the microwave oven is thereby enhanced.

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Electric Ovens (AREA)
  • Constitution Of High-Frequency Heating (AREA)

Claims (11)

  1. Un four à micro-ondes qui inclut une chambre de cuisson (300) et un compartiment pour composants électriques (400) séparés par un panneau latéral (230) ayant une ouverture à l'intérieur pour rendre possible la transmission, à la chambre de cuisson (300), de l'énergie micro-ondes engendrée dans le compartiment des composants électriques (400) et une plaque de couverture (600) attachée au panneau latéral (230) au-dessus de l'ouverture (231), caractérisé en ce que le panneau latéral (230) inclut une partie angulaire (232) formée intégralement sur la périphérie de l'ouverture (231).
  2. Un four à micro-ondes selon la revendication 1, dans lequel la partie angulaire (232) est perpendiculaire au panneau latéral (230) et est dirigée vers le compartiment des composants électriques (400).
  3. Un four à micro-ondes selon la revendication 1 ou 2, dans lequel la plaque de couverture (600) inclut des éléments de verrouillage (610) qui s'engagent avec la partie angulaire (232) et qui retiennent la plaque de couverture (600) en place au-dessus de l'ouverture (231).
  4. Un four à micro-ondes selon la revendication 3, dans lequel un crochet (610a) est formé sur les éléments de verrouillage (610), s'engageant au-dessus de l'extrémité de la partie angulaire (232).
  5. Un four à micro-ondes selon l'une quelconque des revendications précédentes, dans lequel la plaque de couverture (600) inclut un élément d'étanchéité périphérique (620).
  6. Un four à micro-ondes selon la revendication 5, dans lequel l'élément d'étanchéité (620) est flexible pour s'adapter aux contours du panneau latéral (230).
  7. Un four à micro-ondes selon la revendication 6, dans lequel l'élément d'étanchéité (620) est plus mince en sa périphérie radialement extérieure qu'en sa périphérie radialement intérieure.
  8. Un four à micro-ondes qui inclut un boítier intérieur (200) avec une chambre de cuisson (300), un boítier extérieur (100) connecté au boítier intérieur, espacé du boítier intérieur, et ayant un compartiment des composants électriques (400) séparé de la chambre de cuisson, un panneau latéral (230) qui délimite la chambre de cuisson avec une ouverture (231) pour permettre à la chambre de cuisson de communiquer avec le compartiment des composants électriques, un magnétron (420) monté dans le compartiment des composants électriques sur le panneau latéral pour engendrer une énergie micro-ondes à envoyer dans la chambre de cuisson à travers l'ouverture, et une plaque de couverture (600) jointe au panneau latéral et couvrant ainsi l'ouverture, le four à micro-ondes comportant des parties incurvées (232) formées sur les bords supérieur et inférieur de l'ouverture, qui font saillie vers le compartiment des composants électriques, et des loquets (610) formés sur l'arrière de la plaque de couverture pour attraper les parties incurvées lorsqu'elles traversent l'ouverture, la plaque de couverture étant jointe au panneau latéral par les parties incurvées et les loquets.
  9. Le four à micro-ondes selon la revendication 8, dans lequel un crochet (610a) est formé en une courbe vers l'extérieur sur les pointes des loquets (610) pour attraper les parties incurvées (232).
  10. Le four à micro-ondes selon la revendication 8, dans lequel des éléments d'étanchéité flexibles (620) sont prévus sur les bords de la plaque de couverture (600), venant ainsi en contact étroit avec le panneau latéral (230).
  11. Le four à micro-ondes selon la revendication 10, dans lequel les éléments d'étanchéité (620) se prolongent de façon flexible depuis les bords de la plaque de couverture (600), et les pointes des éléments d'étanchéité entrent en contact étroit avec le panneau latéral (230) lorsque la plaque de couverture est jointe au panneau latéral.
EP97306337A 1996-12-12 1997-08-20 Four à micro-ondes Expired - Lifetime EP0848578B1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
KR9664833 1996-12-12
KR19960064833 1996-12-12
KR9719728 1997-05-21
KR1019970019728A KR19980084099A (ko) 1997-05-21 1997-05-21 전자렌지

Publications (3)

Publication Number Publication Date
EP0848578A2 EP0848578A2 (fr) 1998-06-17
EP0848578A3 EP0848578A3 (fr) 1998-08-19
EP0848578B1 true EP0848578B1 (fr) 2002-01-23

Family

ID=26632353

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97306337A Expired - Lifetime EP0848578B1 (fr) 1996-12-12 1997-08-20 Four à micro-ondes

Country Status (7)

Country Link
US (1) US5874716A (fr)
EP (1) EP0848578B1 (fr)
JP (1) JP3056443B2 (fr)
KR (1) KR19980063369A (fr)
CN (1) CN1105879C (fr)
DE (1) DE69710036T2 (fr)
MY (1) MY126784A (fr)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6373037B1 (en) 1999-09-13 2002-04-16 Maytag Corporation Oven cavity construction for convection cooking appliance
JP3750586B2 (ja) 2001-10-31 2006-03-01 松下電器産業株式会社 高周波加熱装置
CN100359238C (zh) * 2003-02-21 2008-01-02 乐金电子(天津)电器有限公司 微波炉零部件安装结构
CN100375862C (zh) * 2003-04-25 2008-03-19 乐金电子(天津)电器有限公司 微波炉的门栓板安装装置
WO2012073457A1 (fr) * 2010-12-01 2012-06-07 パナソニック株式会社 Cuiseur chauffant
JP6252820B2 (ja) * 2011-07-26 2017-12-27 パナソニックＩｐマネジメント株式会社 高周波調理器
EP2784395B1 (fr) * 2013-03-25 2019-05-08 Electrolux Appliances Aktiebolag Cavité de four pour un four de cuisson
US11153943B2 (en) * 2014-07-10 2021-10-19 Panasonic Intellectual Property Management Co., Ltd. Microwave heating device
KR102378130B1 (ko) * 2015-07-07 2022-03-24 엘지전자 주식회사 틈새부위 마감처리를 위한 삽입장치
CN107366934B (zh) * 2017-07-21 2019-04-16 广东美的厨房电器制造有限公司 微波炉组件及微波炉

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2387532A1 (fr) * 1977-04-13 1978-11-10 Etri Sa Prise d'alimentation electrique, notamment pour un ventilateur du type plat
JPS62143392A (ja) * 1985-12-17 1987-06-26 松下電器産業株式会社 高周波加熱装置
GB2196520B (en) * 1986-08-07 1990-01-04 Hitachi Heating Appl Microwave heating apparatus
DE3818490A1 (de) * 1988-05-31 1989-12-07 Bosch Siemens Hausgeraete Mikrowellen-haushaltgeraet
DE4121886C2 (de) * 1991-07-02 1999-02-04 Bosch Siemens Hausgeraete Leuchte für Mikrowellenöfen
JPH0526459A (ja) * 1991-07-17 1993-02-02 Matsushita Electric Ind Co Ltd 高周波加熱器の開閉扉
US5371343A (en) * 1992-06-01 1994-12-06 Matsushita Electric Industrial Co., Ltd. Heating cooking device having a wave guide and feeder port disposed perpendicular to a rotary table
JPH06111935A (ja) * 1992-09-30 1994-04-22 Sanyo Electric Co Ltd 高周波加熱装置
JP3066283B2 (ja) * 1995-03-13 2000-07-17 三洋電機株式会社 電子レンジ

Also Published As

Publication number Publication date
EP0848578A3 (fr) 1998-08-19
EP0848578A2 (fr) 1998-06-17
KR19980063369A (ko) 1998-10-07
CN1184919A (zh) 1998-06-17
CN1105879C (zh) 2003-04-16
US5874716A (en) 1999-02-23
MY126784A (en) 2006-10-31
DE69710036D1 (de) 2002-03-14
JPH10246445A (ja) 1998-09-14
DE69710036T2 (de) 2002-09-26
JP3056443B2 (ja) 2000-06-26

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